MasterRoc TSG 9 - formulated to resist high water and ground pressures

​MasterRoc TSG 9 –
Tail Sealant for Shielded Tunnel Boring Machines

How does MasterRoc TSG 9 work?

MasterRoc TSG 9 effectively seals the gap between the shield and concrete segments to prevent the ingress of water, grout or soil. It is formulated to resist high water and ground pressures, and has excellent pumping properties and adhesion to all surfaces.